Adam (presumably Zac would play this part), is a 20s-something charming, hopeless romantic slacker meets Rachel, a 30s-something stunning Cali yoga type on a flight somewhere and sometime, they have a fling. (Yay another cougar story, lol.) She is going to be married soon but doesn't love her fiance, Ben, and she tells this to Adam. The day of the wedding, Adam crashes the ceremony, professing his undying love for Rachel. He gets decked in the face by a groomsman but his pleas work and he gets the girl.

After saving herself from making a horrible mistake with Ben, Rachel has to make it work with Adam and that, the ever after part, is the bulk of the movie. As one might expect, it isn't easy at all. She's older than him, in a different place in life, she's more settled with a good job, in line for a promotion, a nice place to live. He doesn't have a job, no real money, lives with roommates who play Xbox and watch Cupcake Wars. Basically, her problem was she was uncertain in her relationship, his problem is he's uncertain in everything -- she knows mostly who she is and he doesn't at all know who he is. They love each other undoubtedly and they both want to fit into each others lives but can that work realistically?